Illustration of 16 concentric congruent ellipses that are rotated about the center at equal intervals…
Illustration of 2 concentric congruent ellipses that are rotated about the center at 90°. The ellipses…
Illustration of 4 concentric congruent ellipses that are rotated about the center at equal intervals…
Illustration of 8 concentric congruent ellipses that are rotated about the center at equal intervals…